Reken de erafsom tot 100 uit

Erafsommen
1.
35
–
15
=
2.
70
–
20
=
3.
55
–
15
=
4.
60
–
45
=
5.
70
–
0
=
6.
80
–
30
=
7.
30
–
0
=
8.
65
–
20
=
9.
35
–
15
=
10.
50
–
10
=
11.
80
–
70
=
12.
15
–
5
=
13.
45
–
20
=
14.
60
–
45
=
15.
25
–
0
=
16.
30
–
15
=
17.
20
–
20
=
18.
90
–
10
=
19.
80
–
25
=
20.
15
–
15
=
21.
65
–
40
=
22.
5
–
0
=
23.
70
–
50
=
24.
10
–
10
=
25.
35
–
0
=
26.
55
–
55
=
27.
80
–
55
=
28.
30
–
20
=
29.
25
–
25
=
30.
65
–
25
=
31.
30
–
25
=
32.
55
–
50
=
33.
40
–
35
=
34.
10
–
10
=
35.
15
–
0
=
36.
85
–
5
=
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Reken de erafsom tot 100 uit
| ANTWOORDEN

Erafsommen
1.
35
–
15
=
20
2.
70
–
20
=
50
3.
55
–
15
=
40
4.
60
–
45
=
15
5.
70
–
0
=
70
6.
80
–
30
=
50
7.
30
–
0
=
30
8.
65
–
20
=
45
9.
35
–
15
=
20
10.
50
–
10
=
40
11.
80
–
70
=
10
12.
15
–
5
=
10
13.
45
–
20
=
25
14.
60
–
45
=
15
15.
25
–
0
=
25
16.
30
–
15
=
15
17.
20
–
20
=
0
18.
90
–
10
=
80
19.
80
–
25
=
55
20.
15
–
15
=
0
21.
65
–
40
=
25
22.
5
–
0
=
5
23.
70
–
50
=
20
24.
10
–
10
=
0
25.
35
–
0
=
35
26.
55
–
55
=
0
27.
80
–
55
=
25
28.
30
–
20
=
10
29.
25
–
25
=
0
30.
65
–
25
=
40
31.
30
–
25
=
5
32.
55
–
50
=
5
33.
40
–
35
=
5
34.
10
–
10
=
0
35.
15
–
0
=
15
36.
85
–
5
=
80
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen